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Prototype Design of Parallette Equipment for Callisthenic Sports with PLA (Polylactic Acid) Filament Material Using 3D Printer Indro Prakoso; Ayu Anggraeni Sibarani; Whimpi Hasta Robbi
Jurnal Rekayasa Sistem & Industri Vol 9 No 02 (2022): Jurnal Rekayasa Sistem & Industri
Publisher : School of Industrial and System Engineering, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jrsi.v9i02.541

Abstract

Nowadays, sport is not only a necessity but also a lifestyle. Sport is not only done outdoors but can also bedone independently indoors. One exercise that is easy to do independently is calisthenics. In general,calisthenics can be done with a tool called a parallette. Parallette equipment manufacturers currently stilluse wood materials and conventional production processes and do not have product variations. A potentialproduction process that can be adapted to make parallette equipment is additive manufacturing 3D printerswith PLA (Polylactic Acid) filament material. The process is carried out through several stages: 3D design,printing using a 3D printer, assembly, and finishing. The production process of a parallette tool with a 3Dprinter takes a standard time of 3123.02 minutes. The longest time occurs when printing with a 3D printerfor grip parts (2 parts) and parallette legs (4 parts). The gross production cost for a set of paralletteequipment is Rp. 101,327. Production of calisthenic equipment with PLA (Polylactic Acid) filamentmaterial using a 3D printer can be used as an alternative to replace wood-based parallette products withconventional manufacturing processes. Sports equipment manufacturers can also use this product as achoice and variety offered to customers.
An Approach to Combine House of Quality and Finite Element Method in Redesigning of Rotary Shaft Multi-Spindle Wheel Nutrunner Machine Sibarani, Ayu Anggraeni; Waluyo, Sugeng; Tosalili, Muhammad Baharuddin Wahid; Lutfiana, Hilda
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 26 No. 1 (2024): June 2024
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jti.26.1.37-48

Abstract

An engineering-to-order company has developed multi-spindle wheel nutrunner machines for automotive wheel mounting. The rotating shaft component that supports that machine has experienced compressive and twisting stress during operation, resulting in damage not only to the shaft but also some parts attached to the wheel. This study uses the house of quality (HOQ) and finite element method (FEM) approaches to redesign the rotary shaft to meet quality standards for its engineers, as customers, in a systematic way by using qualitative data from interviews, documents, and questionnaires provided by five rotary shaft engineering experts. Based on the importance levels of technical specifications obtained from the HOQ results, two rotary shaft redesign models for the redesigned models 1 and 2 obtain the maximum von Mises stress from the virtual testing using FEM analysis of 277.5 MPa and 111.8 MPa, respectively, which are below the company standard maximum yield strength of 470 MPa. Hence, using the company's minimum safety factor, the redesigned model 2 is chosen for the improved version of rotary shaft design.